Scala v2.13.13 and v2.12.19 released!

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Scala v2.13.13 and v2.12.19 has been released.

The Scala team at Lightbend is pleased to announce Scala 2.13.13.

The following changes are highlights of this release:

Language

• Support binary integer literals using 0b, as in Java (#10656 by @som-snytt)

Compatibility

• TASTy reader: support Scala 3.4 (#10670 by @bishabosha)
• Support certain Java libraries compiled on JDK 21 (#10675 by @SethTisue)
• For JDK 22 support, upgrade to ASM 9.6 (#10576 by @Philippus)

Align with Scala 3

• Allow either -Xsource:3 (for preparing to switch to 3) or -Xsource:3-cross (for crossbuilding on 2 and 3); some existing users of -Xsource:3 should switch to -Xsource:3-cross to avoid unwanted behavior ch…

Link: Release Scala 2.13.13 · scala/scala · GitHub

This release improves compatibility:

• Support certain Java libraries compiled on JDK 21 (#10675 by @SethTisue)
• Support JDK 22 in optimizer (by upgrading to ASM 9.6) (#10575 by @Philippus)
• New -Yrelease option supplements --release, allows access to additional JVM packages (#10671 by @som-snytt)
• Update compiler’s scala-xml dependency to 2.2.0 (was 2.1.0) (#10459 by @SethTisue)

And it has bugfixes:

• Fix rare NullPointerException in some tree-based collections (#10640 by @lrytz)
• Improved InterruptedException handling…

Link: https://github.com/scala/scala/releases/tag/v2.12.19